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Sodium Carbonate → Methyl 4-(3,4,5,6-tetramethoxy-2-methylbenzyl)-2-(3-pyridyl)benzoate

HRID 1245166
ノート
印刷プレビュー

反応式

HRID 1245166 の反応式
[CH3:1][O:2][C:3]1[C:4]([CH3:34])=[C:5]([C:25]([O:32][CH3:33])=[C:26]([O:30][CH3:31])[C:27]=1[O:28][CH3:29])[CH2:6][C:7]1[CH:16]=[CH:15][C:10]([C:11]([O:13][CH3:14])=[O:12])=[C:9](OS(C(F)(F)F)(=O)=O)[CH:8]=1.C(=O)([O-])[O-].[Na+].[Na+].[Cl-].[Li+].B1([C:49]2[CH:54]=[CH:53][CH:52]=[N:51][CH:50]=2)OCCCO1>C1(C)C=CC=CC=1.C(OCC)(=O)C>[CH3:1][O:2][C:3]1[C:4]([CH3:34])=[C:5]([C:25]([O:32][CH3:33])=[C:26]([O:30][CH3:31])[C:27]=1[O:28][CH3:29])[CH2:6][C:7]1[CH:16]=[CH:15][C:10]([C:11]([O:13][CH3:14])=[O:12])=[C:9]([C:49]2[CH:50]=[N:51][CH:52]=[CH:53][CH:54]=2)[CH:8]=1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 10340Sodium CarbonateHCID 433294Lithium ChlorideHCID 41980053-(1,3,2-Dioxaborinan-2-yl)pyridineHCID 11237521Methyl 4-(3,4,5,6-tetramethoxy-2-methylbenzyl)-2-(trifluoromethanesulfonyl)oxybenzoate

生成物 1

HCID 21919158Methyl 4-(3,4,5,6-tetramethoxy-2-methylbenzyl)-2-(3-pyridyl)benzoate収率 99.1%

試薬・触媒・溶媒 2

HCID 1140Toluene溶媒HCID 8857Ethyl Acetate溶媒

反応条件

温度
95 °C

実験手順

To a solution of methyl 4-(3,4,5,6-tetramethoxy-2-methylbenzyl)-2-(trifluoromethanesulfonyl)oxybenzoate (333 mg, 0.6555 mmol) in toluene (6 ml) were added tetrakistriphenylphosphine palladium (23 mg, 0.0199 mmol), aqueous solution of sodium carbonate (2M aqueous solution, 1.00 ml), lithium chloride (56 mg, 1.3241 mmol) and ethanolic solution (1.3 ml) of pyridine-3-boronic acid 1,3-propanediol cyclic ester (159 mg, 0.9814 mmol) and the mixture was heated with stirring at 95° C. for 16 hours. The reaction solution was diluted with ethyl acetate (100 ml), washed with water and dried and the solvent was evaporated therefrom. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=1:1) to give the title compound (284 mg, 0.6498 mmol, 99%).

後処理

  1. temperaturethe mixture was heated
  2. washwashed with water
  3. customdried
  4. customthe solvent was evaporated
  5. customThe residue was purified by silica gel column chromatography (hexane:ethyl acetate=1:1)

出典と根拠

ORDレコード
ord-7b6c9ea3ae8f47a6a1218c824c09437c
出典データセット
uspto-grants-2006_10
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07122543B2

反応ノート

読み込み中…

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